Gearing for windmills



(No Model.)

G. H. PATTSON.

GBARING POR WINDMILLS.

No. -345,722. Patented 31115120, 1886.

i hzj@m\\\\\\\ N 2o erable form of the invention.

UNITED STATES PATENT OFFICE.

GEORGE H. PATTISON, OF FREEPORT, ILLINOIS.

GEARING FOR WINDMILLS.

SPECIFICATION forming part of Letters' Patent No. 345,722, dated July 20, 1886.

Application filed December 22, 1885. Serial No. 186,428. (No model.) y

' 5 certain new and useful Improvementsin Gearings for Windmills and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains lo to make and use the same.

My invention relates to improvements in gearings for windmills, and is a/modied form of the gear-ings for windmills for which Letters Patent No. 330,921 were granted to me r 5 November 24, 1885, and is fully described and shown in the following specification and drawings, in which- Figure 1,is a central vertical section of a windmill-tower,on which is mounted the pref- Fig. 2 is a similar view of a modied construction of a part of said gearing. Fig. 3 is asection ot a bevelgearing that can be used in place of the inter nal and spur gears, J K, Fig. 1. Fig. 4:.illuscrates what may be Acalled the segmental gears shown in Fig. 2. Fig. 5 shows the slotted arm N and the gudgeon P, seen in the direction of the arrow in Fig. 1.

In Fig. 1, A are the posts' of an ordinary 3o windmill-tower, B is a top plate fastened to said posts, and C is a turn-table supported by anti-friction balls, which rest on the plate B. On the lower face of the turn-table,and formed integrally therewith or attached thereto, is a y`hollow cylinder, G, extending downward and journaledV in the plate B. The wind-wheel shaft E is journaled in a bearing, D, formed integrally rwith the turn-table. In the cylinder G is journaled a preferably-hollow verti- 4o cal shaft, n, which is connected with thewindwheel shaft E by the miter-gears mm,'mount ed on the shafts En, respectively, and on the lower end of the cylinder G is mounted a spurgear, I, which engages with theinternal gear,

F, mounted on the conical shaft U. The gear F is of a diameter double that of the gear I. Connected with and mounted onthe same conical shaft U,which is obliquelyjournaled in the tower, is the internally-toothed gear J, which 5o engages with a spur-gear, K, of equal dialneter, loosely mounted on the shaft n. The combination of the gear I, mounted on the turntable, the gear K,loosely mounted on the central shaft, u, and the connecting-gears F J and the shaft U,- journaled in the tower, is an equivalent form of construction substituted for the combination of the gears I H L K and shaft F, journaled in the tower shown in said prior Patent N o. 330,921, internal instead of spur-connecting gearing being used, the proportion between said gears being the samethat is, the gears I I, H, F, L, J, and K K have the same relative sizes and are adapted to transmit the same amount of motion from the gear I to said gear K. The planetgear T is connected with the gear K by the slotted arm N and gudgeon P, having the collar P', journalcd on the shaft n. This construction substitutes a mechanical equivalent for the form shown in said prior patent, the gears KT being identical in relative position, action, yand purpose in the two cases. lThe power-transmitting miter-gear Q, mounted on the powertransmitting shaft n', engages with said planetgear T on one side, while the miter-gear O, mounted on the shaft a, engages with the planet-gear T on. the opposite side. Therefore the shafts a a rotate in opposite directions.

The operation of this form of gearing is as follows: When the turn-table is stationary, if the wind-wheel shaft be rotated in its bearing in the direction indicated by the arrow on the gear m, the gear m', shaft a, and gear O must turn in the -direction indicated by the arrows on the gears m O, the turn-table being stationary. the gears I F J K are all stationary, and consequently the arm N and gudgeon P are stationary; hence the rotation of the gear O rotates the gear T on the/gudgeon P in the direction indicated by the arrow on the gear T, and this rotation of the gear T rotates the miter-gear Q in the direction indicated by the arrow thereon. The gear Q carries with it the shaft n, and the shafts a a turn in opposite directions. On the other hand, if the gearQbe held stationary,either by the resistance of the workor otherwise,and the turn-table be rotated in the direction indicated by the arrow thereon, the gear I must turn in the same direction and rotate the gears F J in the same direction, and the gear K, engaging with the gear J is turned in the same direction as the IOO gear I, and carries with it the arm N and gudgeon P, and thus rotates the planetgear T bodily about the 'vertical shaft n; and since the gear Q, is stationary the gear T is rolled about the gear Q. and turns the gear O and shaft a in the direction indicated by the arrow on the gear O-that is, in the same direction as the direction of rot-ation of the turn-table. As shown, the gears O T Q are mitergears, and consequently each rotation of the gear K and arm N turns the gear O and shaft atwice, and the gearing K J F I is so proportioned that each rotation of the gear K rotates the turn-table twice; hence, the turntable and shaft n maintain the saine relative posit-ion and the wind-wheel is not rotated in its bearing. Consequently the swiveling of the mill is not affected by the resistance of the work, and the gearing is balanced.

The form shown in Fig. 2 is the same as that shown in Fig. 1 save only in the location of the nniversaljoint gears J K. Segments of two gears are used, and the teeth or cogs are round or oval and very deep, as they operate at some distan ce from the vertical axis of the mill and from the line of intersection of the oblique and vertical shafts. The arm N is dispensed with, as the extended eogs of the segment 0f the gear J engage with the prolonged gudgeons I), which are the single or double toothed segments of the gear K, journaled ou the shaft a. Thus the eogs ot' the gear K form a bearing for the gear T.

Fig. 3 is a sectional view of bevel gearing that may be used instead of the internal and spur gears JK. The joint formed by the gears J K might be simply a universal-joint coupling, and still serve the same purpose without departing from the principle of my invention.

Having now described my invention, in View of my said prior patent, I hereby disclaim for this invention any novelty, except such as is set forth in the following claims:

1. In a windmill of the class described, the combination of the geared turn-table engaging directly with an internal gear and means for communicating the motion imparted to said internal gear by the rotation of the geared turn-table to a looselymounted planet-gear, whereby said planetgear is rotated bodily about the axis of.its movable support.

2. In a windmill of the class described, the combination of the central gears, I K, connected by the gears F J, and inclined shaft U, journaled iu the tower of the mill.

3. In a windmill of the class described, the combination of the turn-table C, gear I, mounted thereon, inclined Ashaft U, and gears F J, gear K, and the planet-gear T, all combined and operating substantially as described, and for the purpose set forth.

4. In a windmill of the class described, the combination of a wind-wheel shaft, E, journaled in a geared turn-table, C, and the gearing my m F J K T O Q, constructed substantially as described.

5. In a windmill of the class described, the combination of the gear F, planet-gear T, and

a universal-joint gearing connecting the gear F with the planet-gear T, whereby the rota tion ofthe gear F produces bodily rotation of the planet-gear T, uniform with the rot-ation of said gear F.

6. In a windmill of the class described, the combination of a rotating turn-table, a gear mounted thereon and engaging with an internal gear mounted on a hollow shaft `iournaled obliquely in the tower, substantially as described.

7. In a windmill of the class described, the combination of a wind-wheel shaft journaled in a geared turn-table, two independentlyjournaled powertransmitting shafts, and a train of gearing connecting said Wind-wheel shaft, geared turntable, and said power-transmitting shafts, one element of said train of gearing being a geared hollow shaft obliquely jonrnaled in the tower, and operating substantially as described, and for the purpose set forth.

8. In a windmill of the class described, the combination of the gear K, slotted arm N, and gudgeon I, with its collar P, constructed and combined as set forth.

9. In a windmill of the class described, a train ot' gearing connecting the wind-wheel shaft, turn-table,and powerltransmittin g shaft, one element of said train being a gear having a slotted arm connected therewith, substan tially as and for the purpose set forth.

10. In a windmill of the class dcscribed,the combination of the gear K, slotted arm N, and gudgeon P, on which is loosely journaled the planet-gear T, and gearing connecting the gear K with the turn-table of the mill,whereby the rotation of the turn-table rotates the gear K and gives bodily rotation to the gear T.

l1. In a windmill of the class described, the combination of a wind-wheel shaftjournaled in a geared turn-table, a power-transmitting gear, and a train of gearing connecting said wind-wheel shaft, geared turn-table, and power1-transmitting gear, one feature of said train of gearing being the combination of the gear K and slotted arm N, for giving bodily rotation to the planet-gear T.

12. In a windmill ofthe class described, the combination of the wind-wheel shaft E and gear m, turn table C and gear I, Vertical shaft n and gears m O, and two gears, F J, mounted on the inclined hollow shaftU, journaled about the shaft n, between the gears I and O, substantially as set forth.

13. In a wind mill of the class described, the combination of the turn-table C and gear I, wind-wheel shaft E and gear m, vertical shaft a and gear m', a central gear, K, journaled on the shaft a, and a geared hollow shaft journaled obliquely about the shaft u, and connecting said gears I and K, whereby the rotation of the gear I rotates the gear K at a different rate of speed.

14. In a windmill of the class described, a chain of gearing connecting the wind-wheel shaft, geared turn-table, and powertransmit- IOC ting shaft, one element in said train of gearspecification in the presence of two subscribing being a. hollow obliqueIy-journaled internally-geared shaft, substantially as described. 15. The combina'on of the gears m I J K 5 O T Q, and internal gear, F, substantially as described, and for the purpose set forth.

In testimony whereof I, have signed this ing Witnesses.

l GEORGE H. PATTISON.

Witnesses:

J AMES H. STEARNs, SAMUEL J. DODDs. 

